AMD Ryzen 7 3700U vs AMD Ryzen 7 3780U

AMD Ryzen 7 3700U

The AMD Ryzen 7 3700U is a mobile SoC that was announced in January 2019. It combines four Zen+ cores (8 threads) clocked at 2.3 - 4 GHz with a Radeon RX Vega 10 graphics card with 10 CUs (640 Shaders) clocked at up to 1400 MHz. Specified at 15 Watt TDP, the SoC is intended for thin mid-range laptops. In Chromebooks, AMD calles the APU AMD Ryzen 7 3700C, but with the exact same specifications (and performance).

The Picasso SoCs use the Zen+ microarchitecture with slight improvements that should lead to a 3% IPC (performance per clock) improvements. Furthermore, the 12nm process allows higher clock rates at similar power consumptions.

The integrated dual-channel memory controller supports up to DDR4-2400 memory. As the features of the Picasso APUs are the same compared to the Raven Ridge predecessors, we point to our Raven Ridge launch article.

The performance of the Ryzen 7 3700U is heavily depending on the TDP settings and the cooling solution of the laptop. The average 3700U at the time of writing is only as fast as a older Ryzen 5 2500U (in our performance rating). This comes from the differences of performance in different laptops. For example, the ThinkPad E595 offers a miles better short and long-term CPU performance compared to the HP Envy x360 (see Cinebench R15 loop below). Compared with Intel CPUs, the Ryzen 7 is on par with a Core i5-8250U on average, but e.g. in the E595 it can be matched with higher end Intel counter parts. However, even the slow examples offer enough performance for demanding multi tasking.

AMD Ryzen 7 3780U

The AMD Ryzen 7 3780U (Microsoft Surface Edition) is a mobile SoC that was announced in Oct 2019 as part of the new Surface Laptop 15. It combines four Zen+ cores (8 threads) clocked at 2.3 - 4 GHz with a Radeon RX Vega 11 graphics card with 11 CUs (704 Shaders) clocked at up to 1400 MHz. Specified at 15 Watt TDP, the SoC is intended for thin mid-range laptops.

Compared to the similar Ryzen 7 3700U, the 3780U offers the faster Vega 11 instead of the Vega 10 GPU.

The Picasso SoCs use the Zen+ microarchitecture with slight improvements that should lead to a 3% IPC (performance per clock) improvements. Furthermore, the 12nm process allows higher clock rates at similar power consumptions.

The integrated dual-channel memory controller supports up to DDR4-2400 memory. As the features of the Picasso APUs are the same compared to the Raven Ridge predecessors, we point to our Raven Ridge launch article.

AMD states that the Picasso APUs are about 8% faster than the predecessors. Therefore, the Ryzen 7 3780U should be slightly ahead the Ryzen 7 2700U. In our benchmark the Ryzen 7 3700U and therefore also the 3780U could not pull ahead much compared to the average Ryzen 7 2700U.